Properties of Porous Magnesium Using Polymethyl Methacrylate (PMMA) as a Space Holder

Tan, Pei Pei; Mohamad, Hasmaliza; Anasyida, Abu Seman

doi:10.1088/1742-6596/1082/1/012063

Cited by 7 publications

(5 citation statements)

References 11 publications

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“…The porous composites replicate the shape and size of space holders, which is important in controlling porosity and pore size [22]. It allows the predictability and reproducibility of mechanical properties.…”

Section: Effect Of Pmma Particle Sizementioning

confidence: 99%

“…The use of PMMA particles as space-holder material was considered to be the most beneficial [20,21]. The use of PMMA particles in porous Mg composite revealed the formation of spherical pores that replicate the shape and size of PMMA particles thus have better control on porosity [22]. Furthermore, their content and size also influence the properties of resultant material.…”

Section: Introductionmentioning

confidence: 99%

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Optimizing the Compressive Properties of Porous Aluminum Composites by Varying Diamond Content, Space Holder Size and Content

et al. 2023

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The compressive properties of powder metallurgy (PM)-based porous aluminum (Al) composites were optimized at three levels based on the following parameters: titanium (Ti)-coated diamond content, polymethylmethacrylate (PMMA) particle content, and PMMA particle size. A 3 × 3 matrix was used in the experimental design of an L9 orthogonal array to get nine sets of combinations. These nine compositions were then tested and analyzed for density, porosity, plateau stress, and energy absorption capacity. The effect of individual input parameters was assessed using the Taguchi-based means ratio and analysis of variance (ANOVA). The main effect plots articulated the optimal parameter levels for achieving maximum compressive property values (plateau stress and energy absorption capacity). The findings show that diamond content and PMMA particle size have a major impact on compressive properties. The ANOVA analysis yielded similar results, with diamond content accounting for the greatest value. Further, the response optimization of compressive properties revealed that maximum values could be obtained at optimum parameters: diamond content of 12 wt.%, PMMA particle size of 150 μm, and PMMA particle content of 25 wt.%. Confirmation tests on the optimal parameters revealed improved results as well as some minor errors and deviations, indicating that the chosen parameters are critical for controlling the compressive properties of Al composites.

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Section: Effect Of Pmma Particle Sizementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimizing the Compressive Properties of Porous Aluminum Composites by Varying Diamond Content, Space Holder Size and Content

et al. 2023

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“…Al and Mg foams were developed through the powder metallurgy technique, using (PMMA) particles as space holders, resulting in efficient control over porosities and densities by varying the PMMA particle content. PMMA particles leave almost negligible residue on decomposition during sintering [ 152 , 153 , 154 ]. This technique has been employed to fabricate various metal foams, as mentioned in Table 6 .…”

Section: Fabrication Techniques Of Metal Foamsmentioning

confidence: 99%

Microstructure and Mechanical Properties of Metal Foams Fabricated via Melt Foaming and Powder Metallurgy Technique: A Review

et al. 2022

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Metal foams possess remarkable properties, such as lightweight, high compressive strength, lower specific weight, high stiffness, and high energy absorption. These properties make them highly desirable for many engineering applications, including lightweight materials, energy-absorption devices for aerospace and automotive industries, etc. For such potential applications, it is essential to understand the mechanical behaviour of these foams. Producing metal foams is a highly challenging task due to the coexistence of solid, liquid, and gaseous phases at different temperatures. Although numerous techniques are available for producing metal foams, fabricating foamed metal still suffers from imperfections and inconsistencies. Thus, a good understanding of various processing techniques and properties of the resulting foams is essential to improve the foam quality. This review discussed the types of metal foams available in the market and their properties, providing an overview of the production techniques involved and the contribution of metal foams to various applications. This review also discussed the challenges in foam fabrications and proposed several solutions to address these problems.

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“…However, there are some issues associated with them; some are toxic, while others do not completely leach out during the leaching process. Researchers have recently replaced them with PMMA particles due to their spherical shape, excellent formability and complete decomposition at a lower temperature range of 360 to 400 • C, leaving nearly zero residue behind [38,39]. Additionally, their spherical shape allows for control over the pore shape and pore size in the resultant porous composites, but there are inadequate reports on the porous composites fabricated using PMMA as space holders and using the powder metallurgy method [40,41].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Strengthening Effect of Coated Diamond Particles on the Porous Aluminum Composites

et al. 2023

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In this work, porous Al alloy-based composites with varying Ti-coated diamond contents (0, 4, 6, 12 and 15 wt.%) were prepared, employing the powder metallurgy route and using a fixed amount (25 wt.%) of polymethylmethacrylate (PMMA) as a space holder. The effects of the varying wt.% of diamond particles on the microstructure, porosities, densities and compressive behaviors were systematically evaluated. The microstructure study revealed that the porous composites exhibited a well-defined and uniform porous structure with good interfacial bonding between the Al alloy matrix and diamond particles. The porosities ranged from 18% to 35%, with an increase in the diamond content. The maximum value of plateau stress of 31.51 MPa and an energy absorption capacity of 7.46 MJ/m3 were acquired for a composite with 12 wt.% of Ti-coated diamond content; beyond this wt.%, the properties declined. Thus, the presence of diamond particles, especially in the cell walls of porous composites, strengthened their cell walls and improved their compressive properties.

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Properties of Porous Magnesium Using Polymethyl Methacrylate (PMMA) as a Space Holder

Cited by 7 publications

References 11 publications

Optimizing the Compressive Properties of Porous Aluminum Composites by Varying Diamond Content, Space Holder Size and Content

Optimizing the Compressive Properties of Porous Aluminum Composites by Varying Diamond Content, Space Holder Size and Content

Microstructure and Mechanical Properties of Metal Foams Fabricated via Melt Foaming and Powder Metallurgy Technique: A Review

Microstructure and Strengthening Effect of Coated Diamond Particles on the Porous Aluminum Composites

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